CVE-2022-50099

HIGH EPSS 11.1%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: video: fbdev: arkfb: Check the size of screen before memset_io() In the function arkfb_set_par(), the value of 'screen_size' is calculated by the user input. If the user provides the improper value, the value of 'screen_size' may larger than 'info->screen_size', which may cause the following bug: [ 659.399066] BUG: unable to handle page fault for address: ffffc90003000000 [ 659.399077] #PF: supervisor write access in kernel mode [ 659.399079] #PF: error_code(0x0002) - not-present page [ 659.399094] RIP: 0010:memset_orig+0x33/0xb0 [ 659.399116] Call Trace: [ 659.399122] arkfb_set_par+0x143f/0x24c0 [ 659.399130] fb_set_var+0x604/0xeb0 [ 659.399161] do_fb_ioctl+0x234/0x670 [ 659.399189] fb_ioctl+0xdd/0x130 Fix the this by checking the value of 'screen_size' before memset_io().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
11.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥2.6.22  –  <4.14.291
linuxlinux_kernel*≥4.15  –  <4.19.256
linuxlinux_kernel*≥4.20  –  <5.4.211
linuxlinux_kernel*≥5.5  –  <5.10.137
linuxlinux_kernel*≥5.11  –  <5.15.61
linuxlinux_kernel*≥5.16  –  <5.18.18
linuxlinux_kernel*≥5.19  –  <5.19.2

References 8

  • git.kernel.org https://git.kernel.org/stable/c/0701df594bc1d7ae55fed407fb65dd90a93f8a9c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/09e733d6ac948e6fda4b16252e44ea46f98fc8b4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2ce61c39c2a0b8ec82f48e0f7136f0dac105ae75
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/352305ea50d682b8e081d826da53caf9e744d7d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4a20c5510aa2c031a096a58deb356e91609781c9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/53198b81930e567ad6b879812d88052a1e8ac79e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8bcb1a06e3091716b7cbebe0e91d1de9895068cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/96b550971c65d54d64728d8ba973487878a06454
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0701df594bc1d7ae55fed407fb65dd90a93f8a9c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/09e733d6ac948e6fda4b16252e44ea46f98fc8b4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2ce61c39c2a0b8ec82f48e0f7136f0dac105ae75
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/352305ea50d682b8e081d826da53caf9e744d7d0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4a20c5510aa2c031a096a58deb356e91609781c9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/53198b81930e567ad6b879812d88052a1e8ac79e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8bcb1a06e3091716b7cbebe0e91d1de9895068cd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/96b550971c65d54d64728d8ba973487878a06454
    Patch